Carbon accounting you can get assured.
GHG Protocol Scope 1, 2 and 3 inventories, base-year recalculation policy and reduction-pathway modelling.
A defensible carbon inventory is a data project.
Most first-time carbon inventories are an energetic spreadsheet effort that does not survive external assurance. Our work builds a data foundation that survives - master data, factors, boundary decisions and evidence - so next year's inventory takes a fraction of the time and looks identical in shape.
Before work begins, we clarify the operating context, governance expectations, and commercial pressures behind the brief. That gives the engagement a clear purpose before technical analysis starts.
The result is a more complete advisory view: what matters now, where risk may surface next, and how recommendations can be implemented without creating unnecessary hand-offs or ambiguity.
Scope
Clarify the decision, deadline, stakeholders, and evidence standard before work begins.
Delivery
Combine partner judgement, technical review, and practical implementation planning in one workstream.
Follow-through
Convert findings into owners, actions, and next steps that leadership can track after the session.

Boundary
Operational or financial control boundary, documented with org-chart evidence.
Scope 1 & 2
Direct emissions and market/location-based electricity with supplier-specific factors.
Scope 3 materiality
Screening all 15 categories, with data-quality scoring on each.
Evidence pack
Assurance-ready evidence repository including supplier statements and emission-factor sources.
Reduction pathway
SBTi-aligned target-setting and reduction-capex modelling.
Numbers that survive the ISAE 3000 test.
We build inventories with assurance in mind - every factor sourced, every exclusion documented, every recalculation decision in writing. The first year sets the discipline; every subsequent year gets materially faster.
- GHG Protocol-aligned
- Factor sources documented
- Scope 3 materiality-led
- Recalculation policy written
About carbon accounting.
No - but you need to demonstrate which you have included and why the rest are immaterial. That screening itself is what assurance tests.
First carbon inventory coming up?
An eight-week first-year engagement produces an assurance-ready Scope 1-3 inventory.